Expansion breaking type tooth picks
Technical field
The present invention relates to a kind of tooth picks, particularly relate to a kind of expansion breaking type tooth picks.
Background technology
Existing tooth picks is commonly called as dental floss stick, normally is made up of by exceptionally straight polyester fiber dental floss a segmental support and one, earlier dental floss is pressed in the teeth space during use, and then moves around in the teeth space, and tartar is taken out of, dental floss is extracted from teeth space again.Existing those skilled in the art are known as, and using dental floss stick to reject tartar is a kind of mode of operation of health, because dental floss is soft, can not damage tooth.But this viewpoint is wrong, and it the reasons are as follows:
1. the shape of corona has up big and down small characteristic usually, and this has up-small and down-big characteristic (referring to Fig. 4 of Figure of description) with regard to making the teeth space between adjacent two teeth.Therefore when using dental floss stick, can obviously feel; Process dental floss being pressed into teeth space is relatively required great effort; In case but dental floss is when entering into teeth space near the position of gingiva, it is just obviously much laborsaving to move dental floss, and the process that dental floss is extracted from teeth space is once more relatively required great effort.
2. the masticatory function of tooth has determined tooth to have the stronger ability of bearing vertical pressure, but the up big and down small structure of root of the tooth is born a little less than the ability relative thin of pulling force tooth.
In view of above-mentioned 2 points, be that dental floss has applied bigger pulling force to tooth therefore at the process nature that dental floss is extracted from teeth space, teeth space is narrow more, and pulling force is big more, and is also just big more to the infringement of root of the tooth.The existing dental floss stick of life-time service applies pulling force to tooth repeatedly, can cut down the adhesion between root of the tooth and the alveolar bone significantly, causes the loosening of root of the tooth, and therefore many patients feel that the teeth space tooth of picking one's teeth more is loosening more.This has been since dental floss stick comes out, need solve for many years but not only not solved by those skilled in the art always, but also the technical problem of not recognized by those skilled in the art.
Summary of the invention
The present invention provides a kind of expansion breaking type tooth picks that in rejecting the tartar process, can not produce vertical pulling force to tooth for solving the deficiency of prior art.
The scheme that solves technical problem of the present invention is: expansion breaking type tooth picks; By segmental support, expansion head, tie rod, fixed cover, draw ring, vertically advance that hole, dental floss, rear supporting hole, back are propped up, preceding, handle and vertically portalling constitute; Wherein, Segmental support is a reverse U shape, and segmental support comprises horizontal stripe and is preceding of one and afterwards props up with the horizontal stripe two ends.Shaft-like handle and segmental support are combined as a whole.The binding site of handle and segmental support is positioned at the horizontal stripe of segmental support and the joint that prop up the back.Have in the junction of handle and segmental support and vertically to enter the hole and vertically portal, vertically enter the hole and vertically portal to be the through hole of vertical direction, its diameter is all greater than the diameter of dental floss.The lower end that prop up the back has the rear supporting hole of level, and rear supporting hole is a cross through hole, and diameter is greater than the diameter of dental floss.Material is that an end of the dental floss of polyester fiber is connected with preceding lower end, and the other end of dental floss passes rear supporting hole successively, passes vertically to enter the hole, pass vertically from top to down and portal again from bottom to top, and the dental floss termination is connected with the end opening that vertically portals.The cross section of handle is up big and down small trapezoidal, and the upper surface of handle has a fixed cover, and fixed cover is the plastic sheet of bar shaped, and the two ends of fixed cover are mutually bonding with the upper surface of handle respectively.Vertically vertically mutual vertical with handle of fixed cover.Tie rod is flat plastic strip, an end of tie rod be with tie rod be holistic expansion head, expansion head be oval lamellar, the thickness at the edge of expansion head is less than the thickness of expanding centriciput, the other end of tie rod be with tie rod be holistic draw ring.The integral body that expansion head, tie rod, draw ring constitute is in the upper surface of handle, the binding site of tie rod and expansion head be in vertically advance the hole and vertically portal suitable for reading between, also pass the upper surface of handle and the C shape of dental floss formation simultaneously and enclose.The girth of said C shape circle is less than the section girth of the widest part of expansion head.The binding site of tie rod and draw ring is placed in the fixed cover.
User will the back and dental floss between preceding is pressed into the teeth space depths and level moves around, with calculus removal after, earlier dental floss is moved to gingival position.Again to the tail end draw ring of handle, when the expansion head when vertically entering the hole with the dental floss at the place suitable for reading of vertically portalling, under the extruding of expansion head, the expansion that dental floss is expanded supports disconnected.At this moment, the direction level of handle being propped up the place forward drags, and dental floss is supportted a disconnected end and from vertically advance hole and rear supporting hole, skids off successively, and finally the side from the gingival position of teeth space laterally skids off.
Adopt such scheme, compared with prior art, the present invention has following marked improvement:
1. because the present invention can will make dental floss break off after the tartar cleaning finishes; Dental floss can laterally be extracted out from the side of the gingival position of teeth space; Because the gingival position width of teeth space is maximum; Make dental floss lateral pull to tooth in extraction reach minimum so on the one hand, the more important thing is avoided that traditional dental floss stick produces in withdrawal process tooth is had the vertical pulling force than macrolesion property, thereby avoided damage to root of the tooth and alveolar bone junction.
2. the present invention only just can break off dental floss through the pulling draw ring, and is easy to operate.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the A-A section enlarged diagram of Fig. 2;
Fig. 4 is in the structural representation in the teeth space for dental floss.
Among the figure: 1. 10. preceding 11. handles 12. vertically portalled after segmental support 2. expansion 3. tie rods, 4. fixed covers, 5. draw ring 6. vertically advanced hole 7. dental floss, 8. rear supporting holes 9.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further description.
Expansion breaking type tooth picks by segmental support 1, expansion 2, tie rod 3, fixed cover 4, draw ring 5, vertically enter hole 6, dental floss 7, rear supporting hole 8, back 9, preceding 10, handle 11 and vertically portalling and 12 constitute; Wherein, Segmental support 1 is a reverse U shape, and segmental support 1 comprises horizontal stripe and is preceding 10 of one and afterwards props up 9 with the horizontal stripe two ends.Shaft-like handle 11 is combined as a whole with segmental support 1.The horizontal stripe that the binding site of handle 11 and segmental support 1 is positioned at segmental support 1 props up 9 joint with the back.Have vertically to enter hole 6 and vertically portal 12 in handle 11 junction with segmental support 1, vertically enter hole 6 and vertically portal 12 be vertical direction through hole, its diameter is all greater than the diameter of dental floss 7.Back 9 lower end has the rear supporting hole 8 of level, and rear supporting hole 8 is a cross through hole, and diameter is greater than the diameter of dental floss 7.Material is that an end of the dental floss 7 of polyester fiber is connected with preceding 10 lower end, and the other end of dental floss 7 passes rear supporting hole 8 successively, passes vertically to enter hole 6, pass from top to down and vertically portal 12 more from bottom to top, and dental floss 7 terminations are connected with 12 the end opening of vertically portalling.The cross section of handle 11 is up big and down small trapezoidal, and the upper surface of handle 11 has a fixed cover 4, and fixed cover 4 is the plastic sheet of bar shaped, and the two ends of fixed cover 4 are mutually bonding with the upper surface of handle 11 respectively.Vertically vertically mutual vertical with handle 11 of fixed cover 4.Tie rod 3 is flat plastic strips, and an end of tie rod 3 is to be holistic expansion 2 with tie rod 3, and expansion 2 be oval lamellar, and the thickness at the edge of expansion 2 is less than the thickness at expansion 2 middle part, the other end of tie rod 3 be with tie rod 3 be holistic draw ring 5.The integral body that expansion 2, tie rod 3, draw ring 5 constitute is in the upper surface of handle 11, the binding site of tie rod 3 and expansion 2 be in vertically enter hole 6 and vertically portal 12 suitable for reading between, the upper surface that also passes handle 11 simultaneously encloses with the C shape of dental floss 7 formations.The girth of said C shape circle is less than the section girth of the widest part of expansion 2.Tie rod 3 is placed in the fixed cover 4 with the binding site of draw ring 5.
User will back 9 and dental floss 7 between preceding 10 is pressed into the teeth space depths and level moves around, with calculus removal after, earlier dental floss is moved to gingival position.Again to the tail end draw ring 5 of handle 11, when expansion 2 when vertically entering hole 6 with the dental floss 7 at 12 places suitable for reading of vertically portalling, under the extruding of expansion 2, dental floss 7 is expanded an expansion of 2 and is supported disconnected.At this moment, the direction level of handle 11 being propped up 10 places forward drags, and dental floss 7 is skidded off from vertically advance hole 6 and rear supporting hole 8 by the disconnected end of support successively, and finally the side from the gingival position of teeth space laterally skids off.